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Intro to the Solow Model of Economic Growth 

Marginal Revolution University
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Here's a quick growth conundrum, to get you thinking.
Consider two countries at the close of World War II-Germany and Japan. At that point, they've both suffered heavy population losses. Both countries have had their infrastructure devastated. So logically, the losing countries should’ve been in a post-war economic quagmire.
So why wasn't that the case at all?
Following WWII, Germany and Japan were growing twice, sometimes three times, the rate of the winning countries, such as the United States.
Similarly, think of this quandary: in past videos, we explained to you that one of the keys to economic growth is a country's institutions. With that in mind, think of China's growth rate. China’s been growing at a breakneck pace-reported at 7 to 10% per year.
On the other hand, countries like the United States, Canada, and France have been growing at about 2% per year. Aside from their advantages in physical and human capital, there's no question that the institutions in these countries are better than those in China.
So, just as we said about Germany and Japan-why the growth?
To answer that, we turn to today's video on the Solow model of economic growth.
The Solow model was named after Robert Solow, the 1987 winner of the Nobel Prize in Economics. Among other things, the Solow model helps us understand the nuances and dynamics of growth.
The model also lets us distinguish between two types of growth: catching up growth and cutting edge growth. As you'll soon see, a country can grow much faster when it's catching up, as opposed to when it's already growing at the cutting edge.
That said, this video will allow you to see a simplified version of the model. It'll describe growth as a function of a few specific variables: labor, education, physical capital, and ideas.
So watch this new installment, get your feet wet with the Solow model, and next time, we'll drill down into one of its variables: physical capital.
Helpful links:
Puzzle of Growth: bit.ly/1T5yq18
Importance of Institutions: bit.ly/25kbzne
Rise and Fall of the Chinese Economy: bit.ly/1SfRpDL
Subscribe for new videos: bit.ly/1Rib5V8
Macroeconomics Course: bit.ly/1R1PL5x
Next video: bit.ly/1RxdSzo
Help us caption & translate this video!
amara.org/v/IHQj/
00:00 Growth Puzzles
01:54 Solow Model of Economic Growth
02:27 What is an Economic Model?
02:56 Production Function - Labor, Education, Capital, & Ideas

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27 июл 2024

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Комментарии : 112   
@ABC2691
@ABC2691 5 лет назад
Can we please take a moment to appreciate and thank not just the smart Professor in this video but also the video/sound editors/creators, animators etc who make this concept/theory so easy to understand. The visuals are f*****g amazing. Took me just 5 min to get Solow Model while my University charges me £12K a year to teach this yet fails to.
@MarginalRevolutionUniversity
@MarginalRevolutionUniversity 5 лет назад
Thank you! I've shared your nice comment with all the folks who worked on that video. -Roman
@broteinshaketh7629
@broteinshaketh7629 2 года назад
fortnite
@martineden7075
@martineden7075 2 года назад
@@MarginalRevolutionUniversity I am still watching and amazed by the quality of the content and animation! Incredible work
@jonghvrs
@jonghvrs 3 месяца назад
i pay my university for them to send me this video..
@ruthanthony7542
@ruthanthony7542 2 месяца назад
It was like a funny movie watching two times thank you so much more appreciated professor
@sullyflynn8746
@sullyflynn8746 8 лет назад
When I am looking for a quick video to explain uni concepts, I go straight to videos like this. Never to videos with numbers and a whiteboard. Thankyou!!!!!
@MarginalRevolutionUniversity
@MarginalRevolutionUniversity 8 лет назад
Thanks, Sully! :D -Meg
@jamesm9534
@jamesm9534 5 лет назад
I wanted formulas with numbers!
@skj0811
@skj0811 8 лет назад
These videos are incredibly enlightening and easy to follow. Great job.
@nadinemcgrath4448
@nadinemcgrath4448 3 года назад
Great introduction and explanation of something I was having trouble with in a uni course. Thanks
@alexsteven8589
@alexsteven8589 Год назад
Video is super concise and easy to follow, well thought through. Well done!
@tomasnobrega8087
@tomasnobrega8087 4 года назад
This whole series about macroeconomics is superb congratulations for the ]GREAT work
@randomrold
@randomrold 7 лет назад
came back here to upvote all the videos since it saved me on my econ final lmao thank u !!
@MarginalRevolutionUniversity
@MarginalRevolutionUniversity 7 лет назад
Yes! Enjoy your break! -Roman
@mobime6682
@mobime6682 Год назад
Wow, just awesome , can't wait to catch the rest of the series! Subscribed!!
@mvfplanet
@mvfplanet 6 лет назад
THANKS - I am a student of Dr. Feilcke (Prof. Weizsäcker) who is a genius in pedagogics and your videos motivate me even more to understand the topics from different points of view.
@user-ww9iw3hi9v
@user-ww9iw3hi9v Год назад
These videos are the best guide lines…well explained and enlightening
@rammusfi2344
@rammusfi2344 4 года назад
Just discovered this and am sooo happy ! Thank you so much !
@LeoniDAS643
@LeoniDAS643 7 лет назад
Thank you so much for this video!
@94Cadaver
@94Cadaver Год назад
This is very useful!!! thank you so much I'm taking a macroeconomic course for my master's degree requirements and I have 0 background on economics. These videos are so helpful
@happyhans6427
@happyhans6427 7 лет назад
I have an exam tomorrow and this helped cover the basics of the Solow Growth model well. Thanks :)
@MarginalRevolutionUniversity
@MarginalRevolutionUniversity 7 лет назад
Glad to hear it, Hans. Good luck on your exam! -Meg
@PunmasterSTP
@PunmasterSTP 2 года назад
Hey I know it's been a long long time, but I just came across your comment and I was curious. How did that exam go? 😀
@user-ye2vl1li9d
@user-ye2vl1li9d Месяц назад
Amazing Video, props to the Profs but also to the editors as this video is still amazing 8 years later.
@johnsamy5017
@johnsamy5017 4 года назад
I am really thankful for your sincere efforts Gentlemen.
@angelasings24
@angelasings24 7 лет назад
thank you so much for these videos!! i have to write a paper on the solow model and now im not completely in the dark LOL
@fazsav
@fazsav 7 лет назад
I wish you were my Econ instructor , Thank you so much!
@PunmasterSTP
@PunmasterSTP 2 года назад
With videos of this high quality, I anticipate that eventually our ignorance will be...so low! But in all seriousness, thank you so much for making these!
@madridmusic3948
@madridmusic3948 6 лет назад
Excelente canal para entender la economía, saludos desde México!
@ananyajain
@ananyajain 3 года назад
thank you so so much for this. truly lifesaving
@vinitapundir447
@vinitapundir447 7 лет назад
This video make the model easy to understand for me ...thanks ......now i will able to explain it in my class presentation..👍👌
@MarginalRevolutionUniversity
@MarginalRevolutionUniversity 7 лет назад
Thanks, Vinita! Best of luck with your presentation. -Meg
@PunmasterSTP
@PunmasterSTP 2 года назад
I know it's been a long long time, but I was just curious. How did the rest of your class go?
@deisor
@deisor 3 года назад
Really helpful video, also awesome practise tests, thanks.
@Reinatsu22
@Reinatsu22 6 лет назад
I like your explanation. Very nice for beginners like me! :)
@muhammadanas8043
@muhammadanas8043 7 лет назад
Very excellent tutorial. Kudos. But I have a question. Why does Solow model use per capita (1/L) variable?
@Friedrich291
@Friedrich291 5 месяцев назад
Great animations! and of course, content. Clear speaker.
@skye486
@skye486 7 лет назад
I'm from Viet Nam but your representations are easy for me to understand.I'm very grateful for your devotion.Hope you finish all of videos of macroeconomic soon.Thank you !
@MarginalRevolutionUniversity
@MarginalRevolutionUniversity 7 лет назад
Thanks, Vân! That's great to hear. Principles of Macroeconomics will be done in the spring of 2017. -Meg
@jongzhenwei5244
@jongzhenwei5244 7 лет назад
This is amazing!! Thanks
@DianaRodriguez-yq9yh
@DianaRodriguez-yq9yh 4 года назад
Thank you! you helped me to understand it better
@user-nf3hh8kn5r
@user-nf3hh8kn5r 5 лет назад
I'm happy I watched this even though I'm not doing economics at school lol
@GFMkidsComedy
@GFMkidsComedy 5 лет назад
Outstanding video!
@masihullahjan1244
@masihullahjan1244 6 лет назад
You guys are amazing. please upload Ramsey cass kopman model, Diamond models, DSG models
@tharuabeysekara9749
@tharuabeysekara9749 4 года назад
Superb explanation. Thank you sir
@hamayun1363
@hamayun1363 2 года назад
you guys are just amazing. wow!
@AliAliabe
@AliAliabe 11 месяцев назад
Helpful video . Thank You
@RajeevSingh-dw7xj
@RajeevSingh-dw7xj 3 года назад
I enjoy watching your videos. I did economics in grad.
@reccur
@reccur 5 лет назад
Thank you very much for the explanation. I am still wondering why this channel has < 200K viewers
@user-se4mw7dq1z
@user-se4mw7dq1z Год назад
from the best explained videos ever seen!!
@alparslankorkmaz2964
@alparslankorkmaz2964 3 года назад
Nicely explained
@54Aakash
@54Aakash 5 лет назад
good way of explaining
@christineb1742
@christineb1742 6 лет назад
This is great!
@mielke13
@mielke13 Год назад
Most wars don't end with winners' generous and benevolent plans to rebuild the losers.
@jed8211
@jed8211 5 лет назад
How is ideas (letter A variable) measured?
@Lauraulloalaulau
@Lauraulloalaulau 2 года назад
1) Thanks a lo for your help. However, I have a question. Does Solow represents better the situation of china? or Lewis?
@amaliaameel
@amaliaameel 4 года назад
Thank you!!!!
@abhijeetvasishtha4627
@abhijeetvasishtha4627 4 года назад
Please! make a series on 'Independent India Economic History'. Highly Demanded!!
@ntcuong01ct1
@ntcuong01ct1 Год назад
Dear Friends, Could you explain the meaning of Depreciation rate of this model?. Thank you.
@sonder2075
@sonder2075 3 месяца назад
Thanks!!
@atulyasinha3765
@atulyasinha3765 3 года назад
thank you so much
@nadiahazmi7679
@nadiahazmi7679 4 года назад
i like your vid. simple with exercise add on!
@evabroekhuizen8264
@evabroekhuizen8264 4 года назад
very good video
@007MrEmir
@007MrEmir 5 лет назад
Thanks.
@Bulsebub
@Bulsebub 4 года назад
1:45 Did he just say that the other countries got more humans than china?
@karannchew2534
@karannchew2534 3 года назад
Why is it A not I for ideas?
@rahmantansia1715
@rahmantansia1715 3 года назад
I have a question, is the Solow model associated to the Neo-classical growth model? I mean, is it the same theory? I’m so sorry but I am so confused right now because in some articles it does refer to the Neo-classical growth theory and in some it doesn’t.
@yydd4954
@yydd4954 Год назад
I don't see a reason why it shouldn't be
@jamesreeves2948
@jamesreeves2948 7 месяцев назад
I understand this is an introduction to the model but I have some questions. First how do you quantify "A"? Second I feel that in the United States we have a problem with over educated individuals working lower skill jobs, would there be a bell curve effect if an economy was too educated? Finally why did he say China had lower human capital than the United States? Is human capital different than population?
@clup3136
@clup3136 2 года назад
Very interesting
@samaddeoo
@samaddeoo 7 лет назад
LIFESAVER
@Valentin-oc5nh
@Valentin-oc5nh 2 года назад
wouldn't the ideas part usually be reffered to as technology?
@yydd4954
@yydd4954 Год назад
It refers to many intangible factors But yeah in most cases it is called "technological advancements"
@nishanfaith1013
@nishanfaith1013 5 лет назад
letter eL = N ?
@MengerMania
@MengerMania 6 месяцев назад
I, too, admire the production quality of this video, but the thinking represented here, not so much. One would expect a small economy to grow at a faster RATE than a large economy. It's simple math. Increasing from 1 to 2 in period amounts to a greater rate of growth than and increase from 6 to 7 in the same period.
@kamilaros3363
@kamilaros3363 4 года назад
please adding Indonesian subtitle
@user-lv4ge8yg5n
@user-lv4ge8yg5n 4 года назад
better than my university lecturer
@ivanferraz8914
@ivanferraz8914 Год назад
According to solow model what drives growth is technology (that includes educated workers)
@nematbekaxmedov6272
@nematbekaxmedov6272 Год назад
Keep going on
@bcubed72
@bcubed72 8 лет назад
Pretty simple: a rich man has more trouble doubling his net worth than a pauper. Same for nations: if you have (virtually) nothing, it doesn't take much to double it. Plus, in the case of (West) Germany and Japan, the "west" invested in their growth for ulterior motives (i.e. the Cold War). This was an "externality" that artificially boosted their growth rate.
@amayoka
@amayoka 2 года назад
Just started on this topic a day ago. Could this also be about decreasing marginal output? These giant economies are already operating at near or past GDP potential. There is no way up but just a little bit up or down
@jort801
@jort801 5 лет назад
A war has no winners only losers.
@bibimaryamjakipbaeva9857
@bibimaryamjakipbaeva9857 Год назад
How come was the US winner in the World War 2?
@amandaz537
@amandaz537 7 лет назад
It would have been nice if the title said the Robert Solow model because I just watched half of it and realized that it wasn't the Harrod-Domar Solow model. You seem very helpful but in this case you didn't help with the right thing....
@MarginalRevolutionUniversity
@MarginalRevolutionUniversity 7 лет назад
Hi Amanda! Apologies for the confusion. The Harrod-Domar model came first in the 1930s and the Solow model (or Solow-Swan model) superseded it after its development in the 1950s. I honestly can't say I've ever heard them referenced together as the Harrod-Domar Solow model. Even though we don't reference the Harrod-Domar model, there's only one Solow model, so this series should still be able to help you with your studies. Cheers, Meg
@renkenner
@renkenner 5 лет назад
At first I thought this (A elk) was a reference to the woman in the Monty Python sketch who had a theory about dinosaurs.
@marif9213
@marif9213 2 года назад
For fucks sake this is amazing love it
@jaylenli6262
@jaylenli6262 5 лет назад
A is productivity in short
@Samtaztic99
@Samtaztic99 5 лет назад
One of my homework questions is 'Give the function of output per effective worker.' Is this just 'f(K/AN)' ?
@burakeres
@burakeres 2 года назад
Ich erkläre das Solow-Modell: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-W0vCFhuh6tg.html Lasst mir ein Kommentar da :)
@abbieboswell2318
@abbieboswell2318 Год назад
No one going to say anything about the claim that china has less human capital the france or Germany? Good vid tho
@darwin6960
@darwin6960 7 месяцев назад
First, human capital is not equal to population. What he means is that human capital on those said countries is more educated and skilled times their population aka more productive citizen than China at that time. It's reasonable unless you believe otherwise.
@meenakshi1657
@meenakshi1657 Месяц назад
@mayulmanav3720
@mayulmanav3720 2 года назад
the Prof.'s "China" is just a sophisticated version of that of trump
@longnewton1
@longnewton1 3 года назад
There are two missing pieces in this model, resources such as iron which are extracted ffrom the planet and waste or externalities such as pollution which are dumped at no cost in this model. To be fair this is a floor in all conventional economics not just these videos.
@PrinceKumar-hh6yn
@PrinceKumar-hh6yn Год назад
Investment in education is the most powerful investment
@bradfordtownsend9698
@bradfordtownsend9698 8 лет назад
It is simple arithmetic. A poor country can grow very fast and can have much less actual growth. --10% of a million = 100,000 or 2% of a billion = 2,000,000 -- Is rebuilding a government building bombed in a war growth or just rebuilding a bombed building?
@bcubed72
@bcubed72 8 лет назад
+Bradford Townsend (forwardresearch) Yes, that's a known GDP liability: it makes disasters look good, because of the ensuing necessary rebuilding.
@bradfordtownsend9698
@bradfordtownsend9698 8 лет назад
Statistics can be used by sophists to manipulate the public with only basic math knowledge.
@GrimFaceHunter
@GrimFaceHunter 7 лет назад
It's yet one more version of broken window fallacy.
@bcubed72
@bcubed72 7 лет назад
+GrimFaceHunter Explain why it's a fallacy? Just because you don't agree with something, doesn't make it a "fallacy."
@GrimFaceHunter
@GrimFaceHunter 7 лет назад
You already explained it in your first comment. It is an erroneous belief that destruction is good for economy.
@jay4612
@jay4612 4 года назад
His accent tho
@2rooms19
@2rooms19 7 месяцев назад
wrong flag for Germany during WWII.
@ronfine3284
@ronfine3284 7 лет назад
xoxo see below cv
@thomson4420
@thomson4420 4 года назад
the idea could from education. this model is useless
@robertbeurre1825
@robertbeurre1825 Год назад
is this just a justification to explain why western economies are falling behind
@davidblumenshine2410
@davidblumenshine2410 2 года назад
could really cut it with the propaganda lol
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